Microporous vinyl chloride polymers and method of making the same
Abstract
Abstract THIS DISCLOSURE RELATES TO A NOVEL PROCES AND TO NOVEL PRODUCTS. THE PRODUCTS COMPRISE SHAPED STRUCTURES OF A VINYL CHLORIDE POLYMER HAVING AN IMPROVED MICROETICULATED STRUCTURE AND ARE MADE BY A PROCESS INVOLVING THE FORMATION OF A DISPERSION OF VINYL POLYMER PARTICLES IN CERTAIN ORGANIC LIQUIDS WHICH ARE NON-SOLVENTS FOR THE POLYMER, REDUCED PRESSURE DEAERATION OF THE DISPERSION AND HEATING OF THE DEAERATED DISPERSION TO SINTER THE VINYL CHLORIDE POLYMER PARTICLES TO FROM A MICRORETICULATED MICROPOROUS STRUCTURE. THE PRODUCTS OF THIS INVENTION ARE PARTICULARLY USEFUL AS FILTER MATERIALS AND THE PROCESS OF THE INVENTION IS ESPECIALLY SUITED FOR THE FORMATION OF SHAPED POROUS ARTICLES, USEFUL AS FILTERS.
Inventors
- 👤 N Rainer
- 👤 D Full
Bibliographic Details
Claims Analysis
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